High leverage iPad Apps in the mathematics classroom.

iPad usage in classrooms is increasing, with 57% of schools investing in them in 2013-14. To effectively use iPads in math classrooms, teachers must know which apps promote deeper understanding. Although learning about apps can be challenging, the authors recommend Dropbox for sharing materials and three free math apps: Sketchpad Explorer, Data Analysis, and MathGraph.

Citation
Perry, A. D., & Thrasher, E. P. (2014). High leverage iPad Apps for the mathematics classroom. The Mathematics
Teacher, 107 (9) 706-711.